EUVD-2026-68534
GHSA-q8w3-gqh4-7j5h
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Network-accessible CGI endpoint with no authentication; impact is read-only firmware state disclosure, so I:N and A:N are appropriate.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
5DescriptionCVE.org
Incorrect access control in the getCloudDownloadStatus function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to obtain cloud firmware download state information via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
AnalysisAI
Unauthenticated information disclosure in TOTOLINK T6 firmware 4.1.5cu.748_B20211015 exposes cloud firmware download state data via the getCloudDownloadStatus CGI function. The CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) confirms fully remote, zero-interaction exploitation with no credentials required against the device's web management interface. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions - remote unauthenticated exploitation against the default web management interface of TOTOLINK T6 firmware 4.1.5cu.748_B20211015 via a crafted POST to /cgi-bin/cstecgi.cgi. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.5 rating reflects accurate metric selection - network-reachable, zero-complexity, unauthenticated access with high confidentiality impact - but the real-world blast radius is constrained by two factors. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No patched firmware version is identified in available references; check the TOTOLINK firmware download page at https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html for updated releases and apply any firmware newer than 4.1.5cu.748_B20211015 if available. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all TOTOLINK T6 devices running firmware 4.1.5cu.748_B20211015 or earlier; restrict network access to the web management interface (TCP ports 80/443) via firewall rules to authorized administrative networks only; monitor access logs for requests to the getCloudDownloadStatus CGI endpoint. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today